| Título | D-Link DIR-513 V1.10 Buffer Overflow |
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| Descripción | A stack-based buffer overflow vulnerability exists in the formSetWanNonLogin function of the Boa web server, which is used to implement the web-based management interface in the DIR-513 embedded device.
This vulnerability is triggered when a remote attacker sends a specially crafted POST request to the /goform/formSetWanNonLogin endpoint. The vulnerable function retrieves the curTime parameter from the request body and later uses it in a call to sprintf():
sprintf(v64, "%s?t=%s", last_url, Var);
Here, Var is derived from the curTime input. Since the length of curTime is not properly validated before being used in sprintf, an attacker can supply an overly long value, leading to a stack buffer overflow. |
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| Fuente | ⚠️ https://github.com/buobo/bo-s-CVE/blob/main/DIR-513/formSetWanNonLogin.md |
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| Usuario | bazhuayu (UID 86763) |
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| Sumisión | 2025-07-18 20:35 (hace 12 meses) |
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| Moderación | 2025-07-19 21:09 (1 day later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 317025 [D-Link DIR-513 1.10 Boa Webserver formSetWanNonLogin sprintf curTime desbordamiento de búfer] |
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| Puntos | 20 |
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